Air-deflecting plate.



D. J. IRISH.

AIR DEFLEOTING PLATE.

APPLICATION FILED SEPT.22, 1911.

Patented Feb. 10, 1914.

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f'atented Feb. 16, 1914.

To all whom it may concern Be it known that 1, DAVID J. linen, a citizen of the United States, residing at New York city, borough of Richmond, county of Richmond, and State of New York, have invented certain new and useful Improvements in Air-Defiecting Plates, of which the following is a specification.

In my application Serial Number 636632, filed July 3, 1911, I have described means for burning finely-divided fuel, the essential feature of which is an air deflecting plate, designed to give to the air for combustion a whirling or rotating motion. Said plate consists of a'plurality of blades secured to a base at an angle to the plane thereof so resulting turning over and over of the fuelin a. gradually expanding volume brings all t its particles into contact with the oxygen of as to provide openings for the air, the burner for the fuel being located in proximity to the central opening of the plate, either within said opening or to the front or to the rear thereof. As more fully set .forth in my said application Serial Numoer 636632, the purpose of the deflecting plate is to secure a continuous, uniform and intimate mixture b causing the volume or current of air whic is drawn or forced into the combustion chamber to come into contact with blades so placed as to deflect the air in'planes at an angle to its direction of travel to thereby impart to the air a whirling or rotating motion in a path surrounding, cutting through and mixing with the stream of finely-divided fuel. This action imparts t0 the fuel, as a consequence, a whirling or rotating motion in the same direction as that'assumed by the air, and in so doing thoroughly mixes the air with the fuel, thereby making a sblid flame. The

the air and thus insures complete combustion.

As the result of experience, I have determined upon an angle of inclination of the blades of 45 degrees to the plane of their supporting plate as giving the best results, and in the forms shown in my said application the blades are stationary. The angularity of the blades, however, can be varied according to the pressure, or the character of the fuel or of the particular furnace to which the'burner is applied, and the preseut application is designed to cover a construction in which the angularity of the blades may be varied relative to the plane ofthe pla The invention will be understood by reference to the accompanying drawings in which-- Figure 1 is a front elevation ofan air deflecting plate embodying the present inventlon; Fig. 2 a vertical section on the plane of the line 2-2 of Fig. 1; Fig. 3, an en'- larged view of a portion of Fig. 1 with parts of the supporting rings for the blades broken away; Fig. 4:, an edge view of a part of the plate showing the blades adjusted at substantially an angle of forty-five degrees to the plane of the supports; Fig. 5, an edge view with the outer ring 10 removed showmg the position of one of the blades adjusted at a less angle to the plane of the supports than shown in Fig. 4; Fig. 6, a transverse section through the supporting rings 1 and 10 with a part of one of the blades in elevation; Fig. 7, a View similar to Fig. 4 with the blades adjusted substantially at an angle of ninety degrees to the plane of the supports, and Fig. 8, a section through the ad uS-ting pinion, the wheel 14 being in elevation.

Similar reference numerals indicate similar parts in the several views.

In this construction the blades are secured between an outer ring 1 and a central inner ring 2, the blades being made up of sheet metal or castings of the outline as shown in Fig. 3, and of such width as to practically meet when the blades are turned so as to lie in the same plane, although this is not an essential feature. One edge of each of the bladw is prolonged to form circular lugs 4: and 5 which are supported respectively in suitable bearings 6 in the outer ring 1 and similar bearings 7 in the central ring 2. The lug 4: of each blade is continued beyond ring 1 and bent to form a crank 8, the outer end of which: is supported in bearings 9 in a two-part ring 1 I The supporting rings 1 and 2 are stationary and the ring 10 is movable, and, to effect the movement of the latter, I provide the following means: On a section of the stationary ring 1 is formed a rack 11, and on the two-part ring 10 is formed a rack 12, these racks bein engaged by a pinion 13 controlled by a and-wheel 14. Any suitable locking means may be provided for the hand-wheel 14, such as a screw bolt 15, the

head of which may be made to bear upon wheel 14:, as shown in Fig. 8. T 4

As above stated, the preferred angle of inclination. of blades 3 is degrees to the general plane of the supporting rings. If,

however, it is necessary or advisable tochange the degree of angularity to suit fuel or furnace conditions, it may be readily done by manually operating the wheel 14 to turn the pinion 13 to cause it to travel between the two racks 11 and 1-2. This will cause the ring 10 to .be given a partial rotation, thereby rotating the crank arms 8, which form a continuation of the blades 3. The wheel 14: may be manipulated until the blades are set at the desired angle, when the pinion may be locked "in position. For the purpose of centering the rings 1 and 10 I provide adjusting screws 16, shown in Fig. 1, The air deflecting plate may be set in any suitable opening in the furnace wall and any appropriate form of burner may be used which will properly project finely-divided fuel, such as gas, oil or solid fuel, into the combustion chamber. As the air for combustion enters between the blades it will be given a whirling motion so that the issuing stream of fuel. is intermixed with, and surrounded by, the whirling air practically immediately ,after it is ejected from the burner. The burner 17 may be placed relatively to the plate, as shown in Fig. 2, or it may be set within the opening of the ring 2 or' otherwise placed according to the c aracter of the fuel or furnace conditions. The radial arrangement of the blades about the central support 2, and the extensionof the ends of the blades in the form of cranks and the connection of the latter by means of the movable support 10 combine to form a convenient and. ready means for supporting and adjusting the blades.

What I claim and desire to secure by Let ters Patent of the United States is:-

1. The combination with a burner, of an air deflecting device comprising inner and outer supports, a plurality of blades pivotally mounted in said supports and spaced apart to provide air admission apertures, said inner support having a central openmg, said burner terminating in proximity to said central opening, and means for varying the angle of inclination of said blades relatively to the plane of the supports.

2. The combination with a burner, of an air deflecting device comprising inner and K outer supports, a plurality of blades pivot ally mounted. in said supports and spaced apart to provide air admission apertures,

said inner support-having a central opening, said burner terminating in proximity to said central opening, one end of each of said blades extended to form a crank, and a movable connection between. the cranks whereby the angle of inclination, of the blades relatively to 'theplane of the supports.

ma be varied.

3. The combination with a burner, of'an lair deflecting device comprising concentric rings, a plurality of blades pivotally mounted in said rings and spaced apart to provide air admission apertures, said burner terminating in proximity to the inner of said rings and operative connections between the outer ends of said blades whereby the an le i of inclination of the blades relatively to t e plane of the supporting rings may be varied; 4E. The combination with a burner, of an air deflecting device comprising fixed concentric rings, a plurality of blades pivotally mounted in said rings and spaced apart to provide air 1 admission apertures, said burner terminating in proximity to the inner of said rings, an outer movable ring, and operative connections between said outer ring and the blades whereby the'angle of inclination of .the blades relatively to the plane of the supporting rings may be varied.

in testimony whereof I have hereunto signed my name in the presence of two subscribing w-itnesses,

DAVID J. IRISH.

Witnesses:

- M, E. Mollmon,

CHARLES S, Jones 

